cd scripts && nosetests runs 3 simple tests and
produces nice test coverage report for wic codebase.
This infra can be used to test other scripts and modules.
(From OE-Core rev: 510dadc2cd8ff8a09932c101512dba74d4624a07)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
